ad3036w3000a

Vehicle speed limiter (GB) diagnosis operational check

Type ad · topic 30.36 · version 0101 · 2003-06-20

Applies to: ENGINE 441.9, 445.9, 446.9 in MODEL 625.1 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit ENGINE 446.9 in MODEL 625.2 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit ENGINE 401.9, 402.9, 440.9, 442.9, 445.9, 446.9 in MODEL 655 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit ENGINE 401.9, 440.9, 441.9, 442.9, 445.9, 446.9 in MODEL 656 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit ENGINE 442.9, 446.9 in MODEL 657 with CODE (

Where it sits

Function group 1 Engine › 30 Throttle control, speed control systems › 30.36 Speed limiter (GB, GBE, GBL) — Series 440 (models 9**) · Series 441 (models 9**) · Series 442 (models 9**) · Series 625 (models 1**, 2**) · Series 655 · Series 656 · Series 657 · Series 658 · Series 659

Also applies to engines/gearboxes: 401 9**, 402 9**, 445 9**, 446 9**

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Vehicle speed limiter (GB) diagnosis operational check

16.12.97

ENGINE 441.9, 445.9, 446.9 in MODEL 625.1 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit

ENGINE 446.9 in MODEL 625.2 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit

ENGINE 401.9, 402.9, 440.9, 442.9, 445.9, 446.9 in MODEL 655 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit

ENGINE 401.9, 440.9, 441.9, 442.9, 445.9, 446.9 in MODEL 656 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit

ENGINE 442.9, 446.9 in MODEL 657 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit

ENGINE 440.9, 442.9, 446.9 in MODEL 658 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit

ENGINE 401.9, 440.9, 442.9, 445.9, 446.9 in MODEL 659 with CODE (MD4) Variable vehicle speed limiter 50 km/h or no limit

Vehicle speed limiter (GB) diagnosis operational check

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2 Warning lamp

3 Compressed air circuit 4 warning lamp

Vehicle speed limiter (GB) diagnosis previous knowledge

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Vehicle speed limiter (GB) functional diagram

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GB diagnosis tools

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a

On-board voltage 22.5 - 29.5 V

b

Connect test module to equipment carrier

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c

Monitoring lamps 30, 15 and D+ come on, monitoring lamp D+ goes off if the engine is running.

Function check

Scope of test

Operation/requirement

Specified value

Possible cause/remedy

1

GB warning lamp

Ignition: ON

GB warning lamp on

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2

GB warning lamp

Ignition: ON

Driving speed approx. 7 kph.

GB warning lamp off

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If speed signal (connection C 3 on instrument control module) is not there, the warning lamp stays on.

3

Vehicle speed limiter

Insert data sheet into tachograph.

Ignition: ON

Accelerate vehicle to 112 kph on rolling test stand.

Vehicle must maintain a constant speed

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Referenced documents